US11701708B2 - Method for fabrication of a composite part - Google Patents

Method for fabrication of a composite part Download PDF

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Publication number
US11701708B2
US11701708B2 US16/093,424 US201716093424A US11701708B2 US 11701708 B2 US11701708 B2 US 11701708B2 US 201716093424 A US201716093424 A US 201716093424A US 11701708 B2 US11701708 B2 US 11701708B2
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United States
Prior art keywords
injection molding
blank
steel
composite component
zirconia
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US16/093,424
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US20190143416A1 (en
Inventor
Henning LUEBBE
Stewes Bourban
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Assigned to THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD reassignment THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURBAN, STEWES, Luebbe, Henning
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1017—Multiple heating or additional steps
    • B22F3/1021—Removal of binder or filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
    • B28B11/0845—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for smoothing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/60—Treatment of workpieces or articles after build-up
    • B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2302/00—Metal Compound, non-Metallic compound or non-metal composition of the powder or its coating
    • B22F2302/25—Oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/015—Ink jet characterised by the jet generation process
    • B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
    • B41J2/06—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field
    • B41J2002/062—Ink jet characterised by the jet generation process generating single droplets or particles on demand by electric or magnetic field by using a divided counter electrode opposite to ejection openings of an electrostatic printhead, e.g. for controlling the flying direction of ejected toner particles by providing the divided parts of the counter electrode with different potentials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/12—Selection of materials for dials or graduations markings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/18—Graduations on the crystal or glass, on the bezel, or on the rim
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a method for fabrication of a composite component and more specifically, a metal-ceramic composite component, i.e. a component combining two distinct materials, respectively made from metal and ceramic.
  • EP Patent No EP2380864 discloses the fabrication of a ceramic element inlaid with galvanic decorations. This method provides numerous advantages but requires many implementation steps to be carried out.
  • the publication entitled ‘Powder compaction of bimaterials: stainless steel 316L and nanocrystalline yttria stabilised zirconia’ describes the forming of a steel 316L and nanocrystalline yttria stabilised zirconia composite by powder compaction or uniaxial pressing. According to this document, a polyvinyl alcohol, in a proportion of 4% by weight, is added to the mixture of each powder as binder. In this forming method of simultaneously pressing two materials, identical densities are obtained for both powders in the green part.
  • CTE coefficient of thermal expansion
  • the invention relates to a method for fabrication of a composite component including the following steps:
  • the composite component can be made mostly of metal or alternatively be made mostly of ceramic. Further, it is noted that the steps are simpler to implement, and the blank formed of the two types of material is sintered in a single step and not consecutively for each material, which avoids repeated handling of intermediate components as in the case of the prior art. Further, against all expectations, and despite the significant difference in coefficient of thermal expansion between steel 316L and zirconia, via the bi-injection moulding method described above, it was possible to obtain a complex 3D bi-injected component with satisfactory cohesion between its steel and zirconia parts.
  • the invention relates to a composite component obtained by the above mentioned method, characterized in that the composite component combines, in one piece, two distinct materials, respectively made from steel 316L and zirconia.
  • the composite component contains two materials which are inseparable, which can be mostly metal or alternatively mostly ceramic. As the two materials are sintered at the same time, they form a one-piece component despite each being of a different nature.
  • FIGURE is a representation of external timepiece parts which can be produced according to the invention.
  • the invention relates to a metal-ceramic composite component.
  • This composite component was devised for applications in the field of horology, such as for example, the external parts of a timepiece.
  • the composite component according to the invention is not limited to the external parts of a timepiece and more generally to horology.
  • this composite component could be applied in the field of tableware, cutlery or jewellery.
  • the composite component can form, in particular, all or part of a case 1 , such as the case middle 2 and horns 3 , a dial 4 , a flange, a bezel 5 , a push-piece 6 , a crown 7 , a case back cover 8 , a hand 9 , a bracelet or strap 10 such as a link 11 , a decoration 12 , an applique 13 , a crystal 14 or a clasp.
  • a case 1 such as the case middle 2 and horns 3 , a dial 4 , a flange, a bezel 5 , a push-piece 6 , a crown 7 , a case back cover 8 , a hand 9 , a bracelet or strap 10 such as a link 11 , a decoration 12 , an applique 13 , a crystal 14 or a clasp.
  • the invention also relates to a method for fabrication of a composite component.
  • the method includes a first step a) intended to form a first material containing powder, for example steel 316L powder, and at least a first additive, and a second material containing powder, for example, zirconia powder, and at least a second additive.
  • the first and second materials formed respectively by injection moulding compositions called ‘feedstock’ in the injection moulding industry, each form powders whose grains shrink in a substantially identical manner during sintering.
  • said at least a first additive and said at least a second additive can include a binder and/or a surfactant and/or a plasticizer depending on the component to be fabricated and/or the agglomeration system used.
  • Said at least a first additive and said at least a second additive can also include an organic compound and/or a polymer, possibly supplemented by an additive such as, for example, a gelling compound and/or a surface active compound.
  • step b) of the method either the first material or the second material can be agglomerated.
  • the composite compound could be metal-based or ceramic-based.
  • step b) can be achieved by injection moulding, pressing, 3D printing or slip casting. However, preferably, injection moulding is used to obtain more varied geometries.
  • step c) intended to agglomerate the other of the first and second materials against the first part of the blank to form at least a second part of the blank.
  • step c) can be achieved by injection moulding, pressing, overmoulding, dip coating, 3D printing or slip casting.
  • injection moulding is used to obtain more varied geometries.
  • steps b) and c) can consist of ceramic and metal injection moulding also known by the abbreviations CIM (Ceramic Injection Moulding) MIM (Metal Injection Moulding) and PIM (Powder Injection Moulding).
  • step d) for sintering the blank in order to obtain the composite component formed of steel 316L and zirconia.
  • step b) agglomerate, in step b), a zirconia forming a main bezel body with recesses and, in step c), steel 316L, which agglomerates to fill said recesses and thus form one or more graduations.
  • step c) steel 316L, which agglomerates to fill said recesses and thus form one or more graduations.
  • a main composite component which is black, for example provided by the zirconia, and including grey graduations, for example provided by steel 316L.
  • the reverse is also possible.
  • the blank formed of two types of material is sintered in a single step d) and not consecutively for each material, which avoids repeated handling of intermediate components as in the case of the prior art.
  • steel 316L is selectively chosen since it has good mechanical resistance to scratching and to corrosion, is insensitive to magnetic fields and is hypoallergenic to wear. It is clear therefore that steel 316L has similar qualities to those of zirconia and therefore forms, in combination therewith, a composite compound perfectly suited to the external parts of a timepiece.
  • the composite component obtained by the method can form a case 1 , whose middle part 2 is made of steel 316L and whose horns 3 are made of zirconia (or vice versa), a steel 316L bezel with zirconia graduations, or the links 11 of a bracelet 10 made of steel 316L with zirconia decorations (or vice versa).
  • step d) can also include a debinding phase for removing said at least a first and a second additive and, more generally, any additive used before the sintering phase intended to increase the density of the blank.
  • a final finishing step for improving the aesthetics of the composite component formed in step d) could also be envisaged.
  • Such a finishing step can typically include machining and/or brushing and/or polishing to make the composite component more aesthetically attractive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Adornments (AREA)
  • Ceramic Products (AREA)
  • Producing Shaped Articles From Materials (AREA)
US16/093,424 2016-05-03 2017-04-28 Method for fabrication of a composite part Active 2040-09-08 US11701708B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP16168124.2 2016-05-03
EP16168124 2016-05-03
EP16168124.2A EP3241636A1 (fr) 2016-05-03 2016-05-03 Procede de fabrication d'une piece composite
PCT/EP2017/060192 WO2017191050A1 (fr) 2016-05-03 2017-04-28 Procede de fabrication d'une piece composite

Publications (2)

Publication Number Publication Date
US20190143416A1 US20190143416A1 (en) 2019-05-16
US11701708B2 true US11701708B2 (en) 2023-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US16/093,424 Active 2040-09-08 US11701708B2 (en) 2016-05-03 2017-04-28 Method for fabrication of a composite part

Country Status (5)

Country Link
US (1) US11701708B2 (fr)
EP (2) EP3241636A1 (fr)
JP (1) JP6751774B2 (fr)
CN (2) CN109070229A (fr)
WO (1) WO2017191050A1 (fr)

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Publication number Priority date Publication date Assignee Title
US20200338809A1 (en) * 2017-12-20 2020-10-29 Eta Sa Manufacture Horlogere Suisse Method for manufacturing a dial comprising at least one three-dimensional element
EP3502789A1 (fr) * 2017-12-20 2019-06-26 ETA SA Manufacture Horlogère Suisse Procédé de réalisation d'un élément tridimensionnel sur un composant horloger
EP3674817A1 (fr) 2018-12-24 2020-07-01 Meco S.A. Procede de fabrication d'un article decoratif
EP3689968A1 (fr) 2019-01-29 2020-08-05 SABIC Global Technologies B.V. Procédé de séparation d'une structure de support à base de copolycarbonate à partir d'un article de frabrication additive
CN109678550A (zh) * 2019-02-25 2019-04-26 上海富驰高科技股份有限公司 一种陶瓷和金属的多层叠加连接结构
EP3709100B1 (fr) * 2019-03-14 2023-06-21 Omega SA Composant d'horlogerie ou de bijouterie composite avec protection du substrat et de son décor
EP3771723A1 (fr) 2019-07-31 2021-02-03 SHPP Global Technologies B.V. Article et procédé de fabrication additive
EP3989010A1 (fr) * 2020-10-21 2022-04-27 Rolex Sa Applique pour cadran d'horlogerie et procédé de fabrication d'une telle applique
EP4079478A1 (fr) * 2021-04-20 2022-10-26 Comadur S.A. Procédé d'injection d'un article décoré
EP4083717A1 (fr) * 2021-04-29 2022-11-02 Rolex Sa Pied pour cadran horloger, plaque pour cadran horloger et cadran horloger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3690062A (en) 1970-01-30 1972-09-12 Suwa Seikosha Kk Hard watch case
US20030062660A1 (en) * 2001-10-03 2003-04-03 Beard Bradley D. Process of metal injection molding multiple dissimilar materials to form composite parts
JP2008029803A (ja) 2006-06-30 2008-02-14 Nihon Seimitsu Co Ltd 装飾品用駒及びこれを用いた装飾品
EP2380864A1 (fr) 2010-04-23 2011-10-26 Omega SA Elément céramique incrusté d'au moins un décor métallique
CN104972125A (zh) 2014-04-04 2015-10-14 浙江一火科技有限公司 一种活检钳钳头的制备方法

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JP6751774B2 (ja) 2020-09-09
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